The present invention relates to a multiband satellite broadcast receiver, and more particularly, to a multiband satellite broadcast receiver using a single antenna.;The multi-band satellite broadcasting receiver according to the present invention includes a plurality of feed horns 110 and 120 disposed at the focal point of one parabolic antenna reflector 220 and the antenna reflector 220 to receive multi-band satellite broadcast signals. 130, a plurality of low frequency converters 160A-160C connected to the respective feed horns for converting the received satellite broadcast signals into intermediate frequency signals, and one point of contact with each of the low frequency converters; An RF switch 170 having excellent isolation characteristics, a satellite broadcast receiver 180 for demodulating and outputting a broadcast signal to a selected channel from an intermediate frequency signal input from the RF switch 170, and each of the low frequency converters ( A reception signal detector 220 for detecting a signal received through a monitor line from 160A-160C, an antenna positioner 150 for positioning the antenna reflector, and the plurality of feed horns The feed horn positioner 140, the antenna positioner 150, the positioner control unit 190 for controlling the step motor of the feed horn positioner 140, and the satellite broadcast The RF switch is controlled according to channel selection information from the receiver 180 and self-diagnosed with predetermined information such as channel frequency information and reception level, and until the signal received through the reception signal detector is in a good state. Control means 210 for providing information such as azimuth, elevation angle to the positioner control unit.
展开▼
